Columbia
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Columbia, SC

The US State House of South Carolina, in Columbia, with the Wade Hampton Statue
The US State House of South Carolina, in Columbia, with the Wade Hampton Statue
May, the last month of the spring, in Columbia, is another warm month, with average temperature fluctuating between 83.8°F (28.8°C) and 59.5°F (15.3°C).

Temperature

In Columbia, the average high-temperature slightly increases, from a warm 76.3°F (24.6°C) in April, to a still moderately hot 83.8°F (28.8°C). The average low-temperature, in May, is 59.5°F (15.3°C).

Heat index

In May, the average heat index is evaluated at a hot 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Columbia, the average relative humidity is 68.2%.

Rainfall

In May, the rain falls for 7.7 days. Throughout May, 3" (75.4mm) of precipitation is accumulated. Throughout the year, in Columbia, South Carolina, there are 106.7 rainfall days, and 44.6" (1132.4mm) of precipitation is accumulated.

Snowfall

In Columbia, South Carolina, snow does not fall in April through November.

Daylight

In Columbia, the average length of the day in May is 13.9h.

Sunshine

May has the most sunshine of the year, with an average of 9.4h of sunshine.

UV index

In Columbia, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 9 transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.

What is the temperature in May in Columbia?

In Columbia, in May, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 59.5°F (15.3°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), that represents influence of the relative humidity to air temperaure, is evaluated at 89.6°F (32°C).

What is the average humidity in May in Columbia?

In May, the average relative humidity is 68.2%.

How much does it rain in Columbia in May?

In Columbia, South Carolina, in May, during 7.7 rainfall days, 3" (75.4mm) of precipitation is typically accumulated.

When it does not snow in Columbia?

In Columbia, South Carolina, snow does not fall in April through November.

How many hours of daylight does Columbia have in May?

In May, the average length of the day in Columbia, South Carolina, is 13.9h.

What month has the most sunshine in Columbia?

The month with the most sunshine is May, with an average of 9.4h of sunshine.

How long on average sun shines in May in Columbia?

In Columbia, the average sunshine in May is 9.4h.

What is the UV index reading in May in Columbia?

In Columbia, South Carolina, the average daily maximum UV index in May is 9. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays.
Average temperature in May - Columbia, SC
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (56°F).

  • Average low temperature in May: 59.5°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.7°F).

Average humidity in May - Columbia, SC
  • Average humidity in May: 68.2%

The month with the highest relative humidity is August (76.5%).
The month with the lowest relative humidity is April (62.1%).

Average rainfall in May - Columbia, SC
  • Average rainfall in May: 3"

The wettest month (with the highest rainfall) is July (5.5").
The driest month (with the lowest rainfall) is April (2.6").

Average rainfall days in May - Columbia, SC
  • Average rainfall days in May: 7.7 days

The month with the highest number of rainy days is July (11.8 days).
The month with the lowest number of rainy days is October (7 days).

Average snowfall in May - Columbia, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.8").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May - Columbia, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.5 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in May / Average sunshine in May - Columbia, SC
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 9.4h

The month with most sunshine is May (Average sunshine: 9.4h).
Months with least sunshine are January and December (Average sunshine: 5.6).

Average UV index in May - Columbia, SC
  • Average UV index in May: 9

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).